“…60 58 Werckmeister, 1988, 108. 59 Krüger, 2003 see also Williams, 2011b, 93-116;Walker, 2000, 200-225. 60 Senra, 1997 for another view see Seehausen, 2009b, 1-37. One practice that indicates such an early date is the lack of mason's marks, which are likewise missing from the first three radiating chapels completed at Santiago de Compostela.…”